<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        [v-cloak]{
            display: none;
        }
    </style>
</head>
<body>
    <div id="app">

        <h1>{{mesasge}}</h1>
        <!-- 显示原始语句 -->
        <p v-pre>{{}}</p>
        <!-- 斗篷 -->
        <h2 v-cloak>{{message}}</h2>
    </div>
    <script src="https://unpkg.com/vue@next"></script>
    <script>
        //用vue创建app
        setTimeout(() => {
            const app = Vue.createApp({
                data: function () {
                    return {
                        message: "Hello word"
                    }
                },
            })
            //挂载app
            app.mount("#app")
        }, 3000);
        
    </script>

</body>
</html>